JP2001010186A - Date stamping impression - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and precisely adjust the height of the printing surface of a printing unit by simply rotating an operation dial by fitting the operation dial on the upper end of a gripping cylinder in a date stamping impression. SOLUTION: This date stamping impression has a receiving member 31 which is fixed to the opening upper end section of a gripping cylinder, an operation dial 32 and a screw body 33. The operation dial 32 is horizontally rotatably, but under a locked state, fitted in the receiving member 31. The screw body 33 is vertically movably, but under a rotation-locking state, screwed with the operation dial 32. When the operation dial 32 is rotated by hand, the screw body 33 vertically moves. The lower end of the vertical shaft 47 of the screw body 33 is brought into contact with the upper end of a printing unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a date stamp in which a main unit has a built-in printing unit capable of changing the date, and the entire printing unit is covered by a gripping cylinder mounted on the main case. The mechanism for adjusting the height of the printing surface at the lower end of each printing belt of the printing unit is improved.

[0002]

2. Description of the Related Art As shown in FIG.
It comprises a printing unit 1, a main case 2 for housing the printing unit 1, and a gripping cylinder 3 mounted above the main case 2. The printing unit 2 has a plurality of printing belts 11 wound around the base frame 7 in a left-to-right parallel manner over the upper and lower sides. Date display can be changed. In the main case 2, the printing unit 1 is housed so as to be vertically movable between an upper printing surface change position and a lower printing position, and a spring member 20 for pushing up and urging the printing unit 1 to the printing surface change position. Having. When the gripping cylinder 3 is pulled up, the printing unit 2 is pushed up by the spring member 20, and the rotary dial 9 faces the operation window 15 opened above the main case 2. In this state, the printing belt 11 is moved to the operation window 15.
Can be operated manually. When the gripping cylinder 3 is pushed down to the closed position, the printing unit 1 is pushed down to the printing position against the spring means. In this state, the printing surface height adjusting mechanism 30 that can adjust the height of the printing surface of the printing belt 11 is provided by the gripping cylinder. 3 is attached.

As such a stamp surface height adjusting mechanism 30, there is Japanese Utility Model Publication No. 61-26057 proposed by the present applicant.
In the first conventional example, as shown in FIG. 8, a screw cylinder 61 having an internal thread is provided at the center of the upper surface wall 60 of the gripping cylinder 3, and an adjusting screw 62 is internally screwed into the screw cylinder 61. By touching the lower end of the printing unit 1 to the top plate 5 of the base frame 7 of the printing unit 1, the height of the printing unit 1 can be finely adjusted by rotating the adjusting screw 62.

In the stamp height adjusting mechanism 30, the biggest problem is that a tool such as a screwdriver, generally a coin or the like is required as a substitute for operating the adjusting screw 62. Further, the operation surface of the adjusting screw 62 is
It sank below 0, making it difficult for tool substitutes such as coins to enter, making adjustment work difficult.

[0005] In order to solve the above problem, the present applicant has proposed Japanese Utility Model Publication No. 2-28059. In this second conventional example, as shown in FIG. 9, a guide boss 63 is integrally provided downward and protruding at the center of the upper surface wall 60 of the gripping cylinder 3, and an adjustment dial 65 is rotatably mounted on the upper surface wall 60 of the gripping cylinder 3. The adjustment dial 65 includes an operation head 66 located on the upper surface of the upper surface wall 60 and the operation head 6.
6, a screw shaft 68 protruding from the center of the lower surface via a short shaft portion 67
Consists of The short shaft portion 67 and the screw shaft 68 are connected to the guide boss 6.
3 so as to be rotatable, and the short shaft portion 67 and the guide boss 63 are fitted.
A means is provided for regulating the vertical movement of the adjustment dial 65 with respect to the gripping cylinder 3 by the concave-convex engagement between them. That is,
The adjustment dial 65 is attached to the gripping cylinder 3 so as to freely rotate only horizontally. A screw cylinder 69 is fitted to the guide boss 63 so that the screw cylinder 69 can move vertically, but restricts horizontal rotation.
9, the screw shaft 68 is internally screwed. Thus, when the adjustment dial 65 is rotated through the operation head 66 by contacting the lower end of the screw cylinder 69 with the top plate 5 of the printing unit 1, only the screw cylinder 69 moves up and down, and The stamp height can be adjusted.

[0006]

According to the second prior art, the vertical height of the printing unit 1 can be adjusted by rotating the operating head 66 of the adjusting dial 65 by hand, which is convenient. . However, in this embodiment, the guide boss 63 which is an element of the stamp surface height adjustment mechanism 30 is integrally formed on the upper surface wall 60 of the gripping cylinder 3 and unless the adjustment dial 65 and the screw cylinder 69 are assembled. The smooth operation of the stamp height adjustment mechanism 30 cannot be confirmed. For example, in order to attach the adjustment dial 65 to the upper surface wall 60 of the gripping cylinder 3 so as to prevent the adjustment dial 65 from coming off and to allow only horizontal rotation, the inner periphery of the upper end of the guide boss 63 has a ridge or recess on the outer periphery of the short shaft portion 67. Where it is necessary to form a concave groove or a convex line corresponding to the groove, the concave groove or the convex line becomes undercut and must be forcibly punched and formed. If the rotational operation force of the adjustment dial 65 is too strong due to poor molding at that time, or if the adjustment dial 65 is too sweet to cause a blind rotation, the entire body including the gripping cylinder 3 must be reassembled.
Although the stamped surface at the lower end has directionality, a heading sticker that also serves as a front display cannot be stuck on the upper surface of the operation head 66 because the entire operation of the adjustment dial 65 is rotated, and this is also inconvenient.

Therefore, an object of the present invention is to make it possible to easily adjust the height of the stamped surface by simply rotating the operation dial at the upper end of the gripping cylinder by hand, but it is excellent in assembling workability and has a height adjusting function. The certainty of operation is to get a date stamp that can be confirmed in advance. Another object of the present invention is to obtain a date stamp on which a heading sticker can be attached to a stamp surface height adjusting mechanism at the upper end of a gripping cylinder.

[0008]

The basic structure of the date stamp according to the present invention is substantially the same as that of the conventional example shown in FIG. 8, and includes a printing unit 1 and a main unit which accommodates the printing unit 1 in a vertically movable manner. A case 2; a spring means for pushing up and urging the printing unit 1 against the main case 2; a gripping cylinder 3 mounted on the main case 2 from above to cover the printing unit 1;
And a stamping surface height adjusting mechanism 30 for pushing down and holding the printing unit 1 to a printing position against the spring means in a state where the gripping cylinder 3 is connected to the lower closed posture. Reference numeral 30 denotes a receiving member 31 fixed to the upper end of the gripping cylinder 3 as shown in FIG. 1, an operation dial 32 mounted on the receiving member 31 so as to be freely rotatable horizontally, but in a retaining shape, and a screw of the operation dial 32. The screw 33 is screwed into the hole so as to be movable up and down, but is prevented from rotating. A part of the screw 33 comes into contact with the printing unit 1 from above. The screw body 3
The upper surface of 3 is sunk below the upper end of the operation dial 32, and a sticking surface 57 of a heading sticker 58 is formed on the upper surface of the screw body 33.

More specifically, as shown in FIGS. 1 to 5, the stamp surface height adjusting mechanism 30 includes a receiving member 31 fixed to the upper end of the holding cylinder 3, an operation dial 32,
And a screw body 33. The receiving member 31 has an upright wall 37 projecting upward from the outer periphery of a bottom wall 36 having an engagement hole 35 at the center. The operation dial 32 has a cylindrical wall portion 40 which is horizontally rotatable with respect to the upright wall 37 of the receiving member 31, but is mounted in a retaining shape, and a female screw 41 is formed in the center of the cylindrical wall portion 40. The holes are provided in a vertically penetrating manner.
The screw body 33 has a vertical axis 47 that is inserted into the engagement hole 35 of the receiving member 31 in a detent-like manner, but can only move up and down.
1 is provided with a male screw 50 to be screwed. The lower end of the longitudinal axis 47 of the screw body 33 contacts the top plate 5 of the base frame 7 of the printing unit 1.

A screw hole of the cylindrical wall portion 40 of the operation dial 32 is formed to have a large diameter, and a flange 49 is formed to protrude at an outer periphery of an upper end of a longitudinal axis 47 of the screw body 33, and a male screw 50 is formed at an outer periphery of the flange 49. On the upper surface of the flange 49, a sticking surface 57 of the heading seal 58 is formed. The operation dial 32 is
The outer peripheral surface at the lower end of the cylindrical wall portion 40 is the upright wall 3 of the receiving member 31.
7 is rotatably but rotatably engaged with the inner peripheral side surface of the inner peripheral surface 7 in a retaining shape, and an upper outer peripheral portion of the cylindrical wall portion 40 is set to an operating portion 42 located above the standing wall 37. The sticking surface 57 of the heading sticker 58 is set at a position sinking below the upper end of the operation dial 32.

[0011]

When the height of the printing unit 1 is adjusted, when the user turns the operation dial 32 to the right or left while holding the operation dial 32, the entire operation dial 32 only horizontally rotates and does not move up and down. The screw body 33 screwed into the female screw 41 of the cylindrical wall portion 40 is vertically movable with respect to the engaging hole 35 of the receiving member 31 but is fitted in a non-rotating manner. The body 33 simply moves up and down without rotating together with the rotation of the operation dial 32. As a result, since the lower end of the vertical axis 47 is in contact with the top plate 5 of the base frame 7 of the printing unit 1 which is being pushed up and urged by the spring means, the printing unit 1 moves up and down with the vertical axis 47. It is adjusted to a predetermined stamp surface height.

[0012]

According to the present invention, the operation dial 32 mounted on the upper end of the gripping cylinder 3 is directly gripped and rotated without using a tool, so that the vertical position of the internal printing unit 1 can be easily adjusted. Adjustable, very convenient.
The three members of the receiving member 31, the operation dial 32, and the screw body 33 constituting the stamp surface height adjusting mechanism 30 are unitized,
In the state of these units, the rotation performance of the operation dial 32 with respect to the receiving member 31 and the vertical stroke of the screw body 33 associated therewith can be confirmed. In particular, it can be checked whether or not the operation dial 32 can be smoothly rotated with an appropriate resistance, and whether or not it should be inadvertently blindly rotated at each adjustment position before the gripping cylinder 3 is mounted. In addition, this unit can be assembled simply by mounting and fixing the receiving member 31 to the holding cylinder 3. Therefore, there is an advantage that the assembling workability can be ensured and the occurrence of defective products can be prevented beforehand.

Further, in the present invention, an attaching surface 57 of a heading seal 58 is provided on the upper surface of the screw body 33. Specifically, the operation dial 32 has a large diameter screw hole to be provided in the cylindrical wall portion 40, and accordingly, the screw body 33 has a flange 49 projecting over the upper end of the vertical axis 47.
A male screw 50 screwed into the female screw 41 of the screw hole of the cylindrical wall portion 40 is provided on the outer periphery of the cylindrical wall portion 40, so that the upper surface of the flange 49 can be used as the sticking surface 57 of the heading seal 58. Since the heading sticker 58 affixed to the affixing surface 57 only moves up and down without rotating the screw body 33, the heading sticker 58 is easy to see by the user and different from the type provided on the operation dial 32 side, in addition to the stamp surface. Has the advantage of also being displayed in front.
In addition, since the operation dial 32 is located above the upright wall 37 of the receiving member 31 because the outer peripheral portion above the cylindrical wall portion 40 is the operation portion 42, the operation dial 32 can be easily rotated with the operation portion 42 as a hand. At the same time, since the sticking surface 57 is located below the upper end of the operation dial 32, damage and peeling of the label 58 can be prevented well.

[0014]

1 to 7 illustrate a date stamp according to the present invention, which includes a printing unit 1, a main case 2 accommodating the printing unit 1, and a grip which is externally mounted on the main case 2 from above. The printing unit 1 includes a cylinder 3 and a cap 4 on the lower surface. The outer surface of the printing unit 1 is completely covered by the main case 2 and the gripping cylinder 3.

In FIG. 6, the printing unit 1 corresponds to FIG.
6 and 7. Referring to FIG. 6, there is provided a gate-shaped base frame 7 having a top plate 5 and left and right side plates 6.6 in a front view, and a support shaft 8 is erected over an upper portion between the side plates 6.6. Support shaft 8
A plurality of rotary dials 9 are arranged side by side and rotatably supported, a U-shaped bridge is provided between the lower ends of the side plates 6, 6 in side view, and an endless rubber is formed over each rotary dial 9 and the bridge. The printing belt 11 is wrapped around, and each printing belt 11 can be individually manually rotated by the rotary dial 9.

On the outer peripheral surface of each printing belt 11, character blocks for displaying year, month, day, etc. are arranged at regular intervals. A spring member 20 is mounted in the main case 2 to push up and urge the entire printing unit 1 as shown in FIG.

The main case 2 is formed in the shape of a cylinder with a bottom as a whole, and an operation window for rotating the rotary dial 9 back and forth as shown in FIGS. Reference numeral 15 denotes a plastic molded product having a large opening formed therein and having a rectangular belt passage opening on the bottom wall of the main case 2 through which the print belt 11 retreats. The printing unit 1 is housed in the main case 2 so as to be vertically movable from above. The printing unit 1 moves up and down in a non-rotating manner between a printing position in which the lower end of the printing belt 11 projects downward from the belt passage and a printing surface changing position in which the printing belt 11 rises to a rotatable area.

In the main case 2, a spring member 20 is interposed between the bottom wall of the main case 2 and a spring receiving portion on the printing unit 1 side. 1 and 5, the print unit 1 is received by a spring wire stopper 22 fixed to the inner surface of the upper end of the cylinder 14 as shown in FIGS. With this stopper 22, the printing unit 1 is held at the upper movement limit where the rotary dial 9 faces the operation window 15, that is, the printing surface change position.

The gripping cylinder 3 has open upper and lower surfaces, and opens and closes an operation window 15 of the main case 2. That is, as shown in FIGS. 6 and 7, the gripping cylinder 3 is a plastic molded product having a cylindrical wall 25 which is fitted almost in close contact with the cylindrical body 14 of the main case 2.

On the left and right sides of the cylinder body 14 of the main case 2, vertically long guide ribs 26 are integrally provided.
5 are provided on the left and right sides of the main case 2, and guide engagement between the guide ribs 26 and the guide grooves 27 allows the main case 2 to be engaged.
The gripping cylinder 3 is mounted to be movable up and down with respect to, so that the gripping cylinder 3 is prevented from falling off. The lower end of each guide groove 27 is open, and the guide groove 27 can be forcedly engaged with the guide rib 26 from above through the lower end opening, and the gripping cylinder 3 is prevented from falling off the main case 2. It has become.

An upper end of the gripping cylinder 3 is open, and a stamp height adjusting mechanism 30 for adjusting the stamp height of the printing unit 1 is provided at the upper end of the opening. The stamp height adjusting mechanism 30 includes a receiving member 31 fixed to the upper end of the opening of the gripping cylinder 3 as shown in FIGS.
And a screw body 33.

The receiving member 31 has a square engaging hole 3 in the center.
5 is a plastic molded product having a circular bottom wall 36 having a circular shape, a circular standing wall 37 protruding upward from the outer periphery of the bottom wall 36, and a stop wall 38 protruding downward from the outer periphery of the bottom wall 36. The stop wall 38 is inserted and fixed from above in a locking hole 39 provided at the upper end of the cylinder wall 25 of the gripping cylinder 3 so as to prevent the stopper wall 38 from coming off, whereby the upper surface of the opening of the cylinder wall 25 is closed by the bottom wall 36. State.

The operation dial 32 has a circular cylindrical wall portion 40 in the center of which a large-diameter screw hole is formed vertically and penetrates, and a female screw 41 is engraved on the inner peripheral surface of the screw hole. This is a plastic molded product in which an operation section 42 is integrally formed on the outer periphery of the upper portion of the upper section 40. Therefore, the upper end of the cylindrical wall portion 40 is located at a lower position than the upper end of the operation portion 42.

On the inner peripheral surface of the upright wall 37 of the receiving member 31, a projection 45 is projected at a quadrant position, and a concave groove 46 is formed on the outer peripheral surface of the cylindrical wall portion 40 of the operation dial 32 over the entire circumference. It is formed. The operation dial 32 is provided in the upright wall 37 of the receiving member 31.
When the cylindrical wall portion 40 is pushed in from above and fitted, the concave groove 4
The protrusion 45 engages with the concave and convex portions 6, whereby the operation dial 32 is horizontally rotatable with respect to the receiving member 31, but is attached in a retaining shape.

In the screw body 33, a circular flange 49 is horizontally formed on the outer periphery of the upper end of the rectangular longitudinal axis 47, and a male screw 50 is engraved on the outer periphery of the flange 49.
When the screw body 33 is fitted into the screw hole of the operation dial 32 from the longitudinal axis 47 side, the male screw 50 of the screw body 33 is screwed with the female screw 41 of the operation dial 32 and can move up and down.
In this mounted state, the vertical axis 47 is inserted into the engagement hole 35 of the bottom wall 36 of the receiving member 31 in a detent-like manner, but is free to move only up and down. 36 project below.

A lock ring 51 is rotatably mounted on the outer periphery of the intermediate portion of the main case 2 between a lock position and an unlock position. When the gripping cylinder 3 is pressed down with respect to the main case 2 as shown in FIG. 6 and the lock ring 51 is rotated to the lock position, the gripping cylinder 3 is fixed to the main case 2 so as not to be lifted. Then, the lower end of the vertical axis 47 abuts on the top plate 5 of the base frame 7 of the printing unit 1, whereby the entire printing unit 1 is pushed down to the lower printing position against the elasticity of the spring member 20. In this state, the height of the printing unit 1 can be adjusted by the operation dial 32 so that the lower end stamped surface of the print belt 11 is positioned substantially flush with the stamped surface of the fixed print body 53 described later.

At the lower end of the main case 2, a fixed printing body 5 made of rubber is interposed via a printing body holder 52 as described with reference to FIG.
3 is attached. The print holder 52 is a plastic molded product through which a rectangular exit window corresponding to the belt passage of the main case 2 is provided. The fixed printing body 53 has a disk shape, and has a rectangular opening at the center of the surface of the printing plate 11 through which the printing belt 11 exits and retracts. A print such as a name is engraved. The fixed print body 53 is adhered and fixed to the print holder 52 in a state where the exit of the fixed print body 53 coincides with the exit window.

In FIG. 5, the cap 4 for covering the stamped surface of the fixed print body 53 is formed in a bottomed cylindrical shape, and a sponge-like ink storage mat 56 is laid on the inner bottom thereof. With the cap 4 fitted on the lower end of the main case 2, the stamped surface of the fixed print body 53 and the stamped bottom surface of the print belt 11 respectively contact the ink absorbing mat 56, and the ink adheres to each stamped surface in preparation for the next use. I do. When not in use, the outer surface of the main case 2 is completely covered with the holding cylinder 3 and the cap 4,
Adhesion of dust to the stamp surface and, conversely, adherence of the ink remaining on the stamp surface to other objects are completely prevented, thereby facilitating carrying and storage. At the time of stamping, it can be stamped simply by pulling out the cap 4.

When assembling the stamp height adjusting mechanism 30, the operation dial 32 is fitted into the receiving member 31 from above and the projection 45 and the concave groove 46 are engaged. Next, or in advance, the screw body 33 is fitted into the screw hole of the operation dial 32 from above, and the male screw 50 at the upper end of the screw body 33 is screwed into the female screw 41 of the screw hole. In this way, the receiving member 31, the operation dial 32, and the screw body 33 are unitized, and the rotation performance of the operation dial 32 with respect to the receiving member 31, and whether the vertical movement of the screw body 33 accompanying the rotation of the operation dial 32 operates correctly. Check for no. Thus, the unit is assembled to the upper end of the opening of the gripping cylinder 3 via the receiving member 31 by the engagement between the stop wall 38 and the locking hole 39.

If you want to change the date, see FIGS.
As shown in (1), the gripping cylinder 3 is pulled up from the main case 2, the operation window 15 is opened, and the rotary dial 9 is exposed on the outer surface. At this time, the printing unit 1 is automatically pushed upward by the spring member 20 from the printing position in FIG. Next, the user rotates the rotary dial 9 while looking at the lower end of the printing unit 1 by turning over the whole unit, and selects a necessary date and number. After that, when the gripping cylinder 3 is closed and externally fixed to the main case 2, the printing unit 1 is moved down to the original printing position against the spring member 20, and the printing unit 1 is in a state where the printing can be performed.

If the printing density of the fixed printing body 53 and the printing belt 11 is not the same, such as when the printing density is different, the operation dial 32
Of the fixed print body 53 and the lower end stamp of each print belt 11 are adjusted to be flush with each other. At this time, the entire operation dial 32 simply rotates around the vertical axis without moving up and down. On the other hand, the operation dial 32
The screw body 33 screwed into the female screw 41 of the
7 is engaged with the engagement hole 35 of the receiving member 31 in a detent shape, so that the screw 33
Only move up and down. Thus, since the lower end of the longitudinal axis 47 of the screw body 33 is in contact with the top plate 5 of the base frame 7 of the printing unit 1, the vertical position of the entire printing unit 1 can be adjusted.

As shown in FIG. 1, a circular sticking surface 57 is formed in the upper surface of the flange 49 of the screw body 33, and a heading sticker 58 is stuck to the sticking surface 57.
As shown in FIG. 3, the heading label 58 has a notation such as a “reception sign” corresponding to the stamp surface of the fixed printing body 53.
It also functions as the directionality of the stamp surface, that is, the front display. However, even if the operation dial 32 is rotated, the screw 33
Does not rotate, the heading sticker 58 is always at the same position and is easy for the user to see. Sticking surface 57 is operation dial 3
2 is located below the upper end, so that a fingertip or the like does not contact the heading seal 58, and the heading seal 58 is not damaged or peeled off from the attaching surface 57.

In the date stamp of the present invention, the stopper 22 may be omitted, and the printing unit 1 may be pulled out upward. The gripping cylinder 3 may be in a form that can be removed upward from the main case 2, and in these cases, the operation window 15 of the main case 2 is a concept including an upper space where the main case 2 is not defined. Holder tube 3 for main case 2
Instead of the lock ring 51 described above, it may be one that can be detachably attached by means such as uneven engagement or screwing.

With respect to the stamp surface height adjusting mechanism 30, when the receiving member 31 is fixed to the gripping cylinder 3, the stopper wall 38 is cylindrical and is fitted in the inner peripheral surface at the upper end of the opening of the gripping cylinder 3 in a retaining shape. It may be a form that engages, or a form in which the stop wall 38 is fitted to the outer periphery of the gripping cylinder 3 having the upper surface wall. When the gripping cylinder 3 has an upper surface wall, an opening for passing the longitudinal axis 47 may be provided in the center of the upper surface wall. The operation dial 32 may be mounted on the receiving member 31 by providing a circumferential groove that opens downward in the cylindrical wall portion 40 of the operation dial 32, and the standing wall 37 of the receiving member 31 may be fitted into the circumferential groove. The downward movement of the operation dial 32 is restricted by the bottom wall 36 of the receiving member 31. For example, the downward movement surface of the standing wall 37 and the upward engaging surface of the cylindrical wall portion 40 cause the downward movement of the operating member 32 from the receiving member 31. The operation dial 32 may be prevented from coming off. The bottom wall 36 of the receiving member 31 does not need to have a wall member on the entire surface, and it is only necessary that the engagement hole 35 be provided. The rotation of the longitudinal axis 47 of the screw body 33 may be stopped between the upper surface wall provided on the gripping cylinder 3 and
For example, the lower end of the vertical axis 47 may be engaged with the top plate 5 of the printing unit 1 in a non-rotating manner.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a main part.

FIG. 2 is a longitudinal sectional side view of a main part.

FIG. 3 is a plan view

FIG. 4 is a sectional view taken along line AA of FIG. 2;

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is a front view in a state where the gripping cylinder is pulled up.

FIG. 7 is a side view in a state where the gripping cylinder is pulled up.

FIG. 8 is a longitudinal sectional front view showing a first conventional example.

FIG. 9 is a longitudinal sectional front view showing a second conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 printing unit 2 main case 3 gripping cylinder 5 base frame top plate 6 base frame side plate 7 base frame 9 rotation dial 11 printing belt 15 operation window 20 spring member 30 stamp height adjustment mechanism 31 receiving member 32 operation dial 33 screw body 35 Engagement hole 36 Bottom wall 37 Standing wall 40 Cylindrical wall 41 Female screw 42 Operating part 47 Vertical axis 49 Flange 50 Male screw 57 Sticking surface 58 Heading seal

Claims (5)

[Claims] 1. A printing unit 1, a main case 2 accommodating the printing unit 1 movably up and down, spring means for pushing up and urging the printing unit 1 against the main case 2, and mounted on the main case 2 from above. The gripping cylinder 3 covering the printing unit 1 and the printing surface height adjustment for holding down the printing unit 1 to the printing position against the spring means in a state where the gripping cylinder 3 is coupled to the main case 2 in a downward closed posture. In the date stamp including the mechanism 30, the stamp surface height adjusting mechanism 30 includes a receiving member 31 fixed to an upper end portion of the gripping cylinder 3, and an operation mounted on the receiving member 31 so as to be horizontally rotatable but not to come off. A dial 32 and a screw body 33 screwed into the screw hole of the operation dial 32 so as to be movable up and down, but in a non-rotating manner. A part of the screw body 33 contacts the printing unit 1 from above. To Date stamp, characterized in that are. The upper surface of the screw body 33 is provided with the operation dial 32.
2. The date stamp according to claim 1, wherein the date stamp is lower than an upper end of the screw body, and a sticking surface 57 of a heading seal 58 is formed on an upper surface of the screw body 33. 3. A printing unit 1 is mounted in a main case 2 so as to be movable up and down between an upper stamping position change position and a lower printing position. Printing belt 1
1 is wrapped around the top and bottom side-by-side,
The printing belt is configured to be manually operable by the rotary dial 9 and has spring means for pushing up and urging the printing unit 1 to the printing surface change position, and when the printing unit 1 is at the upper printing surface change position. , An operation window 15 for operating the rotary dial 9 is formed in the main case 2, and the main case 2 covers the operation window 15 so that the operation window 15 can be opened and closed.
When the gripping cylinder 3 is in the closed position, a stamping surface height adjustment mechanism 30 that pushes down and holds the printing unit 1 to the printing position against the spring means is provided with a date stamp attached to the gripping cylinder 3. The stamp height adjusting mechanism 30 includes a receiving member 31 fixed to the upper end of the gripping cylinder 3, an operation dial 32, and a screw body 33. The receiving member 31 has an engaging hole 35 at the center. An upright wall 37 protrudes upward from the outer periphery of the bottom wall 36. The operation dial 32 has a cylindrical wall portion 40 that is horizontally rotatable with respect to the upright wall 37 of the receiving member 31, but is attached in a retaining shape. A screw hole in which a female screw 41 is engraved is provided in the center of the cylindrical wall portion 40 in a vertically penetrating manner. The screw body 33 is prevented from rotating in the engaging hole 35 of the receiving member 31, but only moves up and down. It has a vertical axis 47 freely inserted, Internal thread of the operation dial 32 to the upper end outer periphery 4
1, a lower end of the longitudinal axis 47 of the screw body 33 is brought into contact with the top plate 5 of the base frame 7 of the printing unit 1. . 4. A screw hole of the cylindrical wall portion 40 of the operation dial 32 is formed to have a large diameter, and a flange 49 is formed to protrude at an outer periphery of an upper end of a longitudinal axis 47 of the screw body 33, and a male screw 50 is formed at an outer periphery of the flange 49. It is formed on the upper surface of the flange 49, the sticking surface 57 of the heading sticker 58
The date stamp according to claim 3, wherein a date mark is formed. 5. An outer peripheral side surface of a lower end of a cylindrical wall portion 40 of the operation dial 32 is horizontally and rotatably, but non-removably engaged with an inner peripheral side surface of an upright wall 37 of a receiving member 31. An upper outer peripheral portion of the operation dial is set to the operation portion located above the upright wall, and a sticking surface of the heading seal is set to a position sinking below an upper end of the operation dial. 4 date stamp.